antiprotons
英[ˈæntiprəʊtɒn]
美[ˈæntiproʊtɑːn]
- n. [高能]反质子(等于 negative proton);[高能]负质子
双语例句
- 1. The Tevatron works with protons and antiprotons.
- 而兆电子伏加速器使用的是质子和反质子。
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- 2. Coaxing hot and bothered antiprotons and positrons to couple is quite a task.
- 让处于高温与高速运动状态的反质子和正电子进行结合是一桩非常困难的工作。
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- 3. Now astrophysicists say they've finally discovered this long-fabled belt of antiprotons.
- 现在天体物理学家说,他们终于发现了这条长期存在于传说中的反质子带。
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- 4. The machine sends pulses of antiprotons about every hundred seconds into cold helium gas.
- 机器每隔约100秒发送1个反质子脉冲进入到冷的氦气中。
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- 5. Unfortunately hadrons, such as protons and antiprotons, are made of smaller bits called quarks.
- 不幸的是,强子,比如质子和反质子,是由名为夸克的更小单元所组成的。
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- 6. This constitutes "the most abundant source of antiprotons near the Earth", say the PAMELA team.
- 这构成了“接近地球的最丰富的反质子源”,PAMELA团队说。
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- 7. But this raises an interesting question: what happens to the antiprotons after they are created?
- 但是这提出了一个有趣的问题:这些反质子在诞生之后又怎样了?
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- 8. The antineutrons escape the atmosphere and then decay into antiprotons at much higher altitudes.
- 反中子逃离大气,然后在高得多的区域衰变为反质子。
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- 9. The antiprotons are then pushed into the same trap as the positrons and left to mingle for a second or so.
- 然后将反质子推入到装有正电子的容器中,用大约一秒钟的时间等待它们混合。
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- 10. Pairs of protons and antiprotons are also directly produced in the cosmic ray collisions with the atmosphere.
- 宇宙射线撞击大气时,也会直接产生成对的质子和反质子。
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- 11. Physicists have long suspected that antiprotons must become trapped in a belt around Earth. Now they've found it.
- 长期以来物理学家认为一些反质子一定被捕获在地球的一个条带中。现在他们已经找到它了。
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- 12. It has developed better techniques for cooling both positrons and antiprotons, which should allow it to trap more anti-atoms.
- 该小组已开发出冷却正电子和反质子的改进技术,通过应用这些技术应该能够捕获到更多的反原子。
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- 13. Astronomers long ago realised that these collisions must produce antiprotons, just as they do in particle accelerators on Earth.
- 天文学家很久之前认识到,这些粒子碰撞一定会产生反质子,正如它们在地球上的粒子加速器中的表现一样。
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- 14. The result comes from CDF's analysis of billions of collisions of protons and antiprotons produced by Fermilab's Tevatron collider.
- 这个结论来自CDF实验组对费米实验室的万亿电子伏对撞机产生的数以亿计的正反质子对碰撞所得数据的分析。
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- 15. In 2006, these guys launched a spacecraft called PAMELA into low Earth orbit, specifically to look for antiprotons in cosmic rays.
- 2006年,这些天体物理学家发射了一艘人造卫星,命名为PAMELA,进入低地球轨道,专为寻找宇宙射线中的反质子。
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- 16. Applications include the electron cooling of ion beams in storage rings and the final deceleration of antiprotons and heavy ion beams in traps.
- 应用包括在存储环和反质子和在陷阱的沉重的离子束的最后的减速里的电子离子束的冷却。
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- 17. The antiprotons in this scheme would be gathered into a vast fuel tank, a nearly weightless cloud hundreds of meters long surrounding the craft.
- 在这一计划中,反质子被收集起来装进一个巨大的燃料箱,该燃料箱实际上就是环绕在飞船周围长达几百米的无重量云团。
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- 18. At the right moment, the antiprotons would mix with protons and annihilate them to produce highly energetic charged particles to propel the craft.
- 在合适的时刻,使反质子和质子混合,发生湮灭,产生高能带电粒子,推进飞船运行。
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- 19. To create antihydrogen and keep it from immediately annihilating, the ALPHA team cooled antiprotons and compressed them into a matchstick-size cloud.
- 为了要建立反氢原子,并且要使它不至于马上湮灭,反氢激光物理装置的研究团队把反质子冷却,并把它们压缩成火柴棍大小的云斑。
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- 20. But some astronomers always suspected that the remaining antiprotons must become trapped by the Earth's magnetic field, forming an antiproton radiation belt.
- 但是一些天文学家一直怀疑,那些剩下的反质子一定被地球磁场捕获,形成一条反质子辐射带。
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- 21. Saturn may produce the greatest number of antiprotons because of interactions between cosmic rays—energetic charged particles from space—and the planet's icy rings.
- 由于宇宙射线(来自太空的高能带电粒子)和土星冰冷的光环之间进行相互作用,土星上产生的反质子数量可能最多。
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- 22. The belt, which extends from a few hundred to about 2000 kilometers above Earth, "constitutes the most abundant source of antiprotons in Earth's vicinity," Bruno says.
- “这条带在地球以上几百公里到大约2000公里处延伸着,构成了地球附近最为丰富的反质子储存库,”布鲁诺说。
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- 23. Update: Penn State researchers have conceived of an engine to drive a spacecraft with shock absorbers tough enough to survive the collisions of protons and antiprotons.
- 最新消息:宾州的研究者已经构想了一种推进飞船用的发动机,其船体带有足够强度的减震器,可以经受正反质子湮灭时的冲击。
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- 24. Theteam proved that among their 10 million antiprotons and 700 million positrons, 38 stable atoms of antihydrogen were formed, lasting about two tenths of asecond each.
- 研究小组证实,1000万个反质子和7亿个正电子共形成38个稳定的反氢原子,每一个的存在时间只有短短十分之二秒左右。
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- 25. Then the researchers nudged this cloud of cold, compressed antiprotons so it overlapped with a like-size positron cloud, where the two particles mated to form antihydrogen.
- 然后研究人员推动这个冷却的云斑,并进一步把反质子压缩,以致可以用一个相似大小的中子云来与它相重叠,就在那时,两个粒子(反质子和中子)成对地形成了反氢原子。
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- 26. Then the researchers nudged this cloud of cold, compressed antiprotons so it overlapped with a like-size positron cloud, where the two particles mated to form antihydrogen.
- 然后研究人员推动这个冷却的云斑,并进一步把反质子压缩,以致可以用一个相似大小的中子云来与它相重叠,就在那时,两个粒子(反质子和中子)成对地形成了反氢原子。
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